In early 1996 Håkon Wium Lie cooperated with Bert Bos, who was already developing a new browser language called SPP, to produce the first version of the CSS standard (CSS1).
[citation needed] CSS working group members belong to the broader organization W3C.
The first characteristic provided, can be explained more as an opportunity to meet and work with “leading companies, organizations, and individuals” specialized in web technologies.
“W3C Activity proposals” are strategically examined and operated by the members, giving them the ability to work methodically.
Finally, CSS members are adopting a significant role into the W3C project of developing the Web standards, which requires leadership skills and dedication.